| 摘要 |
A toothbrush (10)includes a head (14) having multiple cleaning elements (24, 26). One set of the cleaning elements is longer than the other and relatively rigid. That set (24) alternates with a shorter, springier set (26) of cleaning elements (24, 26). The flexibility of the shorter springier cleaning elements (26) facilitates penetration of the longer cleaning elements (24) into the interproximal area of the user's teeth. |
